CN102815104A - Printing apparatus - Google Patents
Printing apparatus Download PDFInfo
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- CN102815104A CN102815104A CN2012101886006A CN201210188600A CN102815104A CN 102815104 A CN102815104 A CN 102815104A CN 2012101886006 A CN2012101886006 A CN 2012101886006A CN 201210188600 A CN201210188600 A CN 201210188600A CN 102815104 A CN102815104 A CN 102815104A
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- Prior art keywords
- detection
- terminal
- detection terminal
- terminals
- short
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17526—Electrical contacts to the cartridge
- B41J2/1753—Details of contacts on the cartridge, e.g. protection of contacts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17543—Cartridge presence detection or type identification
- B41J2/17546—Cartridge presence detection or type identification electronically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17553—Outer structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
Landscapes
- Ink Jet (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
A printing apparatus (1000) includes a first detection terminal (550) and a second detection terminal (590) which contact with respective two first terminals (250, 290) of each of printing material containers; a third detection terminal (510) and a fourth detection terminal (540) which contact with respective two second terminals (210, 240) of each of the printing material containers; a first detection unit (667) detects a first detection signal from the first detection terminal via a first attachment detection path; and a second detection unit (670) detects a second detection signal from the third detection terminal via a second attachment detection path. The first detection unit detects a short circuit occurring between the second detection terminal and the third detection terminal on the basis of the second detection signal, and the second detection unit detects a short circuit occurring between the first detection terminal and the fourth detection terminal on the basis of the first detection signal.
Description
Technical field
The present invention relates to install printing material and hold printing equipment of body etc.
Background technology
For example in patent documentation 1, put down in writing following technology: have and detect kind and printing material that printing material holds body (ink holds body etc.) and hold body and have or not the testing circuit of installation etc. and detect whether the printing material that printing material holds in the body is in the printing equipment of the circuit (amount of printing material testing circuit) more than the ormal weight, preventing or suppress that printing material that the short circuit by testing circuit and amount of printing material testing circuit causes holds the unfavorable condition of body and printing equipment.
In addition, for example, in patent documentation 2, put down in writing the short-circuit protection circuit of the rechargeable secondary battery of band residual capacity Presentation Function.
[technical literature formerly]
[patent documentation]
No. the 4539654th, [patent documentation 1] Japanese documentation patent gazette
[patent documentation 2] Japanese documentation spy opens flat 5-299123 communique
In patent documentation 2 in the short-circuit protection circuit of record, adopted the change in voltage of measuring the current sense resistor that efferent is equipped with to judge the method for output current when being short-circuited.But,, need current sense resistor be made as low resistance in order to suppress the loss of energy.But, in this case,, therefore require to judge the high precision int of the decision circuit that has or not short circuit because the detection voltage that obtains because of current/voltage-converted reduces.
In order to make the decision circuit high precision int, for example, adopt with decision circuit constitute first supply voltage (for example, 0V) with second source voltage (number V are for example about 3V～5V) between the method for the analog circuit of working.In this circuit constituted, the voltage of measuring the two ends (two ends) of short-circuit detecting resistance detected short circuit, but because each variation in voltage of two ends, correspondingly, irrefragable is that inequality will take place certainty of measurement.
And taking at needs needs level conversion under the situation of high voltage (for example, about tens of V), and correspondingly, irrefragable is that circuit complicates.
And, because the back holding circuit work that is detected of short circuit, though therefore very short time, also might short circuit current flow.
Summary of the invention
According at least one mode of the present invention, can detect the normal contact between the terminal in the printing equipment more accurately and comprise that printing material holds the undesirable short circuit between the terminal that causes unfavorable condition in the printing equipment of body.
The technological means that is used for the technical solution problem
(1) printing equipment of the present invention mode is a kind of printing equipment, comprising:
Printing material holds body; Said printing material holds body and has two the first terminals, two second terminals, at the electric device that connects between said two the first terminals and connect the wiring between said two second terminals, said printing material holds body can be installed to said printing equipment;
First and second detection terminals, said first and second detection terminals contact with said two the first terminals when said printing material holds body and is installed to said printing equipment;
Third and fourth detection terminal, said third and fourth detection terminal are when said printing material holds body and is installed to said printing equipment and said two second termination contact;
First test section; Said first test section is connected with said second detection terminal; And, detect contacting of said first and second detection terminals and said two the first terminals thus via first detection signal of the first installation and measuring path detection that comprises said electric device and said two the first terminals from the output of said first detection terminal; And
Second test section; Said second test section is connected with said the 4th detection terminal; And via second detection signal of the second installation and measuring path detection that comprises said wiring and said two second terminals from said the 3rd detection terminal output; Detect contacting of said third and fourth detection terminal and said two second terminals thus
Said first test section detects the short circuit of said second detection terminal and said the 3rd detection terminal based on said second detection signal,
Said second test section detects the short circuit of said first detection terminal and said the 4th detection terminal based on said first detection signal.
In this mode; First, second detection signal that will be used for two systems of installation and measuring is used for short-circuit detecting; Under situation about being short-circuited between the terminal, not that just often contact detection signal (first, second detection signal) but short-circuit detection signal (another person of first, second detection signal) is detected.Therefore, be made as high impedance etc.,, also can when short circuit, detect short-circuit detection signal reliably even do not block the signal of any one through any one output with the generation portion of first, second detection signal.In addition; The short circuit of second detection terminal and the 3rd detection terminal comprises the 3rd detection terminal of exporting second detection signal and second detection terminal that is connected with first test section as a result of and the short circuit of conducting, comprises that also printing material holds the short circuit (with reference to Fig. 6) between the terminal on side.Likewise; The short circuit of first detection terminal and the 4th detection terminal comprises first detection terminal of exporting first detection signal and the 4th detection terminal that is connected with second test section as a result of and the short circuit of conducting, comprises that also printing material holds the short circuit (with reference to Fig. 7) between the terminal on side.And said each signal can be detected with digital form.First, second detection signal of two systems for example can be made as pulse signal.Thus, do not need high-precision analog circuit in principle.
In addition, according to this embodiment, owing to need not connecting current sense resistor for first, second detection signal that uses first, second test section to detect two systems, so the driving force of each signal can not descend.
And,, have or not short circuit for benchmark detects with regulation current potential (for example, ground connection) according to this embodiment.For example, in first test section or second test section, an end predetermined fixed of current/voltage-converted resistance to ground connection, and is detected the variation of current potential of the other end of this current/voltage-converted resistance, detect to have or not thus and be short-circuited.In this case, can measure the variation of current potential of an end of current/voltage-converted resistance with regulation current potential (in above-mentioned example, ground connection) for benchmark.Thus, compare with the situation of the variation of the voltage at the two ends of detecting short-circuit detecting resistance, the precision of short-circuit detecting improves.
(2) in a mode of printing equipment of the present invention; Can be: will be made as first short circuit paths from the path that second detection signal of said the 3rd detection terminal output is passed to said first test section; To be made as second short circuit paths from the path that said first detection signal of said first detection terminal output is passed to said second test section; The impedance in the said first installation and measuring path is greater than the impedance of said first short circuit paths, and the impedance in the said second installation and measuring path is greater than the impedance of said second short circuit paths.
When the current driving ability that is derived from body in the generation of first, second detection signal equates substantially; Detect above-mentioned short-circuit detection signal for one of first, second detection signal surpasses another person, can be dependent on from the size of each impedance of the first installation and measuring path of first test section and first short circuit paths.That is, if the impedance in the first installation and measuring path greater than the impedance of first short circuit paths, then second detection signal is won.
Likewise, whether one of first, second detection signal surpass another person and depend on from the size of each impedance of the second installation and measuring path of second test section and second short circuit paths.That is, if the impedance in the second installation and measuring path greater than the impedance of second short circuit paths, then first detection signal is won.
(3) in a mode of printing equipment of the present invention, also can have the electric current limiting resistance of restriction from the magnitude of current of said second detection signal of said the 3rd detection terminal output.
So; Utilize the bigger resistance of electric device when between the first, the 3rd detection terminal, being short-circuited; Utilize said electric current limiting resistance when between the second, the 4th detection terminal, being short-circuited; The impedance in first, second installation and measuring path and first, second short-circuit detecting path can be set, and the current driving ability of first, second detection signal can be adjusted.Thus, can another person of one first, second detection signal that surpass first, second detection signal be carried out short-circuit detecting as short-circuit signal.
(4) in a mode of printing equipment of the present invention; Also can have the overvoltage test section; When said overvoltage test section has applied the high voltage with voltage level higher than the voltage of said second detection signal at said printing equipment to said first detection terminal, detect one in said the 3rd detection terminal and said the 4th detection terminal and whether be applied in the above voltage level of regulation.
According to this embodiment; Under the situation about when having applied high voltage, being short-circuited via short-circuit resistance RSN (Fig. 6) and/or short-circuit resistance RSP (Fig. 7); Via this short-circuit resistance RSN (Fig. 6) and/or short-circuit resistance RSP (Fig. 7), the 3rd detection terminal and/or the 4th detection terminal, use the overvoltage test section can detect this voltage.That is, be independent of the detection that the short circuit between the terminal takes place, as preferred overvoltage countermeasure, in that use the overvoltage test section for example to detect to reduce under the voltage condition about logic level or block the such countermeasure of high voltage can be by execution promptly.
(5) in a mode of printing equipment of the present invention; The said electric device that said printing material holds body is to use capacity cell to detect whether the surplus that said printing material holds the printing material in the body is the above sensor of ormal weight; Said printing equipment also has arresting element, and said arresting element is discharged by the electric charge to said capacity cell before exporting at said first detection signal and said second detection signal.
If when the contacting of detecting sensor and printed side terminal/short circuit, in capacity cell, accumulate electric charge is arranged, cause measure error by the electric current of this charge generation as sensor.That is it is difficult, having or not short circuit with regulation current potential (for example, ground connection) for benchmark detects.Therefore, in this mode, the arresting element that before the contact detection through being arranged on contact detecting the electric charge of capacity cell is discharged, and discharge via the electric charge of this arresting element to capacity cell, can suppress the precise decreasing of short-circuit detecting.
(6) in a mode of printing equipment of the present invention, it is adjacent with said the 3rd detection terminal to be constituted as said first detection terminal, and said second detection terminal is adjacent with said the 4th detection terminal.
Under first detection terminal situation adjacent with the 3rd detection terminal, for example, because the possibility that the ink of electric conductivity etc. make two-terminal be short-circuited increases.And, under second detection terminal situation adjacent with the 4th detection terminal, for example, because the possibility that the ink of electric conductivity etc. make two-terminal be short-circuited increases.Therefore, very important based on the countermeasure of short-circuit detecting.
Description of drawings
Fig. 1 is the stereogram that the formation of the printing equipment in an embodiment of the invention is shown;
(A) of Fig. 2 and (B) of Fig. 2 are the stereograms that the outward appearance of print cartridge is shown;
(A) of Fig. 3 and (B) of Fig. 3 are the figure of formation and substrate that the surface of substrate the is shown formation when observing from the side;
Fig. 4 is the block diagram of electric formation that substrate and the printing equipment of the print cartridge in an embodiment of the invention are shown;
Fig. 5 is the block diagram of concrete example of electric formation that substrate and the printing equipment of the print cartridge among the present invention are shown;
Fig. 6 is the figure of the short-circuit detecting action when being used to explain between the terminal by short-circuit resistance RSN short circuit:
Fig. 7 is the figure of the detection action of the short circuit when being used to explain between the terminal by short-circuit resistance RSP short circuit.
Fig. 8 is the figure that is illustrated in voltage waveform under each situation that has short circuit that has short circuit and Fig. 7 of no short circuit, Fig. 6, first to fourth detection terminal.
Symbol description
100 printing materials hold body (print cartridge)
206 wiring 208 electric devices (sensor)
210,250,290 two the first terminals of 240 two second terminals
510 the 3rd detection terminals 540 the 4th detection terminal
550 first detection terminals, 590 second detection terminals
650 second detection signal generation portions of 620 overvoltage test sections, 640 first detection signal generation portions
662,665 installation/short-circuit detecting portions, 667 first test sections, 670 second test sections
661 high voltage generation portions
1000 printing equipments, 1010 apparatus main bodies
CS1, CS2 printing material hold body (print cartridge)
SPins, the Is1 first detection signal SPres first response signal
DPins, the Is2 second detection signal DPres second response signal
RSN, RSP short-circuit resistance Rr electric current limiting resistance
M1, the M4 arresting element
The specific embodiment
Below, preferred embodiment at length describe of the present invention.In addition, below this illustrated embodiment be not the content of the present invention that is limited to the scope record of claim undeservedly, and the formation of in this embodiment, explaining not necessarily must be all as solution of the present invention.
Fig. 1 is the stereogram that the formation of the printing equipment in an embodiment of the invention is shown.Printing equipment 1000 has print cartridge (printing material holds body) 100 and apparatus main body 1010, and apparatus main body 1010 has print cartridge installation portion 1100 that print cartridge 100 is installed, rotates cap 1200 and operating portion 1300 freely.Print cartridge installation portion 1100 is also referred to as " cartridge holder " or is called for short and makes " retainer " or " installation portion ".
In example shown in Figure 1, at box installation portion 1,100 four print cartridges can be installed independently, for example, the print cartridge of black, yellow, magenta, four kinds of cyan is installed.Cap 1200 can omit.Operating portion 1300 is input units that the user is used to carry out various indications or setting, and comprises the display part that is used for the user is carried out various notices.
(A) of Fig. 2 and (B) of Fig. 2 are the stereograms that the outward appearance of print cartridge 100 is shown.XYZ axle among (A) of Fig. 2 and (B) of Fig. 2 is corresponding with the XYZ axle of Fig. 1.In addition, print cartridge also is called for short work " box ".That this box 100 has is flat, be the face shaping of cuboid substantially, in the size L1 of three directions, L2, L3, and length L 1 (size of direction of insertion) maximum, width L2 is minimum, and height L3 is between length L 1 and width L2.
(A) of Fig. 3 shows the formation of circuit substrate in first embodiment (below, be also referred to as substrate) 200.The surface of substrate 200 is to be installed to the face that 100 last times of box expose laterally at substrate 200.Fig. 3 (B) illustrates the figure that observes substrate 200 from the side.Be formed with projecting slot 201 in the upper end of substrate 200, be formed with protruding hole 202 in the bottom of substrate 200.
Arrow SD in Fig. 3 (A) representes the installation direction of box 100 to box installation portion 1100.This installation direction SD is consistent with the installation direction (directions X) of box shown in Figure 2.Substrate 200 has storage device 203 overleaf, for example is provided with the terminal group of for example being made up of nine terminals 210～290 on the surface.Storage device 203 is preserved the information (for example, ink surplus) relevant with the ink of box 100.Terminal 210～290 is formed rectangle substantially, and be configured to edge and installation direction SD substantially vertical direction form two row.
Row in two row, the front side of installation direction SD (being arranged in the row of upside of Fig. 3 (A)) are called upside row R1 (first row), the row (being arranged in the row of the downside of Fig. 3 A) of the inside side in two row, installation direction SD are called downside row R2 (secondary series).In addition, these row R1, R2 can be considered to the row that the contact site cp (contact site that is formed by each termination contact with each terminals of a plurality of terminals and following multiple arrangement side terminal) through a plurality of terminals forms.
Form the terminal 210～240 of upside row R1 and the terminal 250～290 of formation downside row R2 and have following function (purposes) separately:
<upside row R1 >
(1) installation and measuring terminal (second terminal) 210
(2) reseting terminal 220
(3) clock terminal 230
(4) installation and measuring terminal (second terminal) 240 < downside row R2 >
(5) installation and measuring terminal (the first terminal, sensor terminal) 250
(6) power supply terminal 260
(7) ground terminal 270
(8) data terminal 280
(9) installation and measuring terminal (the first terminal, sensor terminal) 290
Four installation and measuring terminals 210,240,250,290 detect with corresponding device side terminal 510,540,550,590 (stating after in Fig. 4) between electrically contact quality the time use, also can be called " contact detection terminal ".In addition, also can the installation and measuring processing be called " contact detection processing ".In this embodiment, four installation and measuring terminals 210,240,250,290 also can be used for short-circuit detecting except that being used for installation and measuring.In addition, the terminal in the installation and measuring terminal 210,240 can be used for the overvoltage detection.Therefore, symbol 250,290 is called two the first terminals, symbol 210,240 is called two second terminals.In addition, the terminals 250,290 that are connected with following sensor 208 in four installation and measuring terminals 210,240,250,290 are called sensor terminal.Other five terminals the 220,230,260,270, the 280th, the terminal of storage device 203 usefulness is also referred to as " memory terminal ".
A plurality of terminals 210～290 separately therein centre portion comprise contact site cp, the corresponding termination contact in said contact site cp and the multiple arrangement main body side terminal.Each contact site cp of the terminal 250～290 of each contact site cp of the terminal 210～240 of formation upside row R1 and formation downside row R2 has been constituted so-called jagged configuration by configuration alternately.In addition, the terminal 250～290 of the terminal 210～240 of formation upside row R1 and formation downside row R2 does not dispose along the mode that installation direction SD arranges with terminal center each other alternately, has constituted jagged configuration.
Each contact site of two installation and measuring terminals 210,240 of upside row R1 is configured in the both ends of upside row R1, the i.e. outermost of upside row R1 respectively.In addition, each contact site of two installation and measuring terminals 250,290 of downside row R2 is configured in the both ends of downside row R2, the i.e. outermost of downside row R2 respectively.The contact site cp of memory terminal 220,230,260,270,280 is by the cardinal principle centre of centralized configuration in the zone at all places of a plurality of terminals 210～290.In addition, the contact site cp of four installation and measuring terminals 210,240,250,290 is configured in four jiaos of set of memory terminal 220,230,260,270,280.
Fig. 4 is the block diagram of electric formation that circuit substrate 200 and the printing equipment main body 1010 of the box 100 in first embodiment are shown.The apparatus main body 1010 of printing equipment 1000 comprises display floater 430, power circuit 440, main control circuit 400 and sub-control circuit 500.Display floater 430 is the display parts of various notices that are used for carrying out to the user operating state, box installment state etc. of printing equipment 1000.Display floater 430 for example is set on the operating portion 1300 of Fig. 1.Power circuit 440 has first power supply 441 that produces the first supply voltage VDD and second voltage 442 that produces second source voltage VHV.
The first supply voltage VDD is the common supply voltage (specified 3.3V) that is used for logic circuit.Second source voltage VHV is used to drive print head and makes the high voltage (for example, specified 42V) of ink ejection.These voltage VDD, VHV are provided for secondary control circuit 500 and also offer other circuit as required.Main control circuit 400 has CPU 410 and memory 420.Secondary control circuit 500 has memorizer control circuit 501 and the mounting testing circuit 600 of execution to the visit of the storage device 203 of box.In addition, the circuit that comprises main control circuit 400 and secondary control circuit 500 also can be called " control circuit (control part) ".
The apparatus main body 1010 of printing equipment 1000 is provided with a plurality of terminals 510～590 that are connected with secondary control circuit 500.These apparatus main body side terminals 510～590 contact with a plurality of terminals 210～290 that printing material holds body (print cartridge) 100 respectively.At this, the terminal of symbol 550,590 is called first detection terminal 550 and second detection terminal 590 that contacts with two the first terminals 250,290 of box side.And the terminal of symbol 510,540 is called the 3rd detection terminal 510 and the 4th detection terminal 540 that contacts with two second terminals 210,240 of box side.
In nine terminals of the substrate that is arranged at box 200 (Fig. 3), reseting terminal 220, clock terminal 230, power supply terminal 260, ground terminal 270 and data terminal 280 are electrically connected with storage device 203.Storage device 203 is a kind of nonvolatile memories; It does not have the addressing terminal; Confirm the memory cell that conducts interviews and be based on, and synchronously accept data, or send data from data terminal from data terminal with clock signal SCK from the umber of pulse of the clock signal SCK of clock terminal input and from the director data of data terminal input.Clock terminal 230 is used for to storage device 203 clock signal SCK being provided via device side terminal 530 from secondary control circuit 500.Supply voltage that is used to drive storage device (for example, specified 3.3V) and ground voltage (0V) from printing equipment 1000 are provided for power supply terminal 260 and ground terminal 270 respectively via device side terminal 650,570.The supply voltage that is used to drive this storage device 203 can be from the direct acting voltage of the first supply voltage VDD, also can produce from the first supply voltage VDD, than the lower voltage of the first supply voltage VDD.Data terminal 280 is used between secondary control circuit 500 and storage device 203 via device side terminal 580 exchange data signals SDA.Reseting terminal 220 is used for to storage device 203 reset signal RST being provided via device side terminal 520 from secondary control circuit 500.Two installation and measuring terminal (two second terminals) 210,240 are connected to each other via wiring 206 in the substrate 200 (Fig. 3) of box 100.Thus, when third and fourth detection terminal 510,540 contacted with two second terminals 210,240, third and fourth detection terminal 510,540 connected through wiring 206.Other two installation and measuring terminals (two the first terminals) 250,290 be arranged on box 100 on electric device for example sensor 208 be connected.Two the first terminals 250,290 of box side also are used as sensor terminal, and contact with second detection terminal 590 with first detection terminal 550 of device side respectively.
At this, in order to detect surplus with sensor 208, liquid measure inspection signal is provided for one of them electrode of the piezoelectric element that constitutes sensor 208 via sensor terminal 290.Liquid measure inspection signal is (for example to be about the analog signal of 36V with reference to Fig. 5～maximum voltage that Fig. 7) generates by high voltage generation portion 661.The piezoelectric element of sensor 208 vibrates according to the surplus of the ink in the box 100, and the opposite voltage that produced of vibration as the liquid measure response signal from piezoelectric element via another sensor terminal 250 to liquid measure test section 664 (with reference to Fig. 5～Fig. 7) send.The liquid measure response signal comprises the vibration component with frequency corresponding with the vibration number of piezoelectric element.Liquid measure test section 664 is through measuring the frequency of liquid measure response signal RS, can detect the ink surplus whether more than ormal weight.This ink surplus detects and handles is via terminal 250 high voltage that high voltage signal offers sensor 208 to be handled, and said high voltage signal has the high voltage level of the first installation check signal SPins that uses than in following earth detection (detection of electrical leakage processing).
Fig. 5 is the block diagram of concrete example of electric formation that circuit substrate 200 and the apparatus main body 1010 of the box 100 in first embodiment are shown.But, in Fig. 5, only show two in the four look print cartridges 100 shown in Figure 1.
In this printing equipment 1000, sensor processing portion 660 has two installation/short-circuit detecting portions 662,665.Two installation/short-circuit detecting portions 662,665 be used to detect printing material hold body (print cartridge) IC1, IC2 whether normally be installed to printing equipment 1000, the first, the 4th detection terminal 550 that should not connect originally, between 540 or second, third detection terminal 590, whether undesirable unusual short circuit takes place between 510.
Comprise following all short circuits in this short circuit that should be detected: when 660 pairs of sensors 208 of sensor processing portion (sensor drive driving circuit) apply high voltage; Second detection terminal 590 of exporting the 3rd detection terminal 510 of the second installation and measuring signal (second detection signal) DPins shown in Figure 5 and being connected with first test section 667 as a result of and the short circuit of conducting, perhaps export first detection terminal 550 of the first installation and measuring signal (first detection signal) Spins shown in Figure 5 and the 4th detection terminal 540 that is connected with second test section 670 as a result of and the short circuit of conducting.This short circuit for example is the undesirable short circuit owing to generations such as adhering to of ink.In other words; The short circuit that should be detected is meant the short circuit relevant with following content: the high voltage that 660 pairs of sensor terminal of sensor processing portion (sensor drive driving circuit) 250,290,550,590 apply is applied to the terminal beyond the sensor terminal 250,290,550,590, thereby storage device 203, secondary control circuit 500 are applied in the above voltage of absolute maximum rated voltage.
In addition, two the installation/short-circuit detecting portions 662,665 in the sensor processing portion 660 shown in Figure 5 are equivalent to mounting testing circuit shown in Figure 4 600.
(1) installation and measuring (contact detection)
Dispose the first detection signal generation portion 640 and first test section 667 in the installation/short-circuit detecting portion 662, dispose the second detection signal generation portion 650 and second test section 670 in the installation/short-circuit detecting portion 665.
The first detection signal generation portion 640 generates the first detection signal SPins.The first detection signal Spins that generates from the first detection signal generation portion 640 is detected by first test section 667 via following path when first and second detection terminals 550,590 contact with two the first terminals 250,290 of print cartridge IC1.Promptly; The flow through path (the first installation and measuring path) of output buffer A1, switch TS1, switch SW 1 (contact a1), first detection terminal 550, print cartridge IC1 (the first terminal 250, sensor 208 and the first terminal 290), second detection terminal 590, switch SW 2 (contact b1) and input buffer A2 of Fig. 5 of the first detection signal Spins that generates from the first detection signal generation portion 640, first test section 667 detects first and detects response signal SPres thus.
At this, if be capacity cell as the sensor 208 of an example of electric device, the voltage that then an end of sensor 208 is applied combines to produce through electric capacity at the other end of sensor 208.So, the voltage of the first detection signal Spins transmits via sensor 208, can use first test section 667 to detect based on first of the first detection signal Spins thus and detect response signal SPres.
If first and second detection terminals 550,590 do not contact with two the first terminals 250,290 of print cartridge IC1, then be false in the first installation and measuring path.In this case, can not use first test section 667 to detect and detect response signal SPres based on first of the first detection signal Spins.So, first test section 667 has or not and detects according to detect response signal SPres based on first of the first detection signal Spins, can detect contacting/noncontact of first and second detection terminals 550,590 and two the first terminals 250,290 accurately.
And, in order to check other print cartridge IC2, replace and use above-mentioned switch SW 1, SW2, can use switch SW 1 ' (contact a1 ') and SW2 ' (contact b1 ').So, can check a plurality of print cartridge IC1, IC2 respectively with the mode of timesharing.
The second detection signal generation portion 650 generates the second detection signal DPins.When third and fourth detection terminal 510,540 corresponding with each box contacted with two the first terminals 210,240 of all print cartridge IC, the second detection signal DPins that generates from the second detection signal generation portion 650 was detected by second test section 670 via following path.Promptly; The flow through path (the second installation and measuring path) of detection path (second terminal 210, wiring 206 and second terminal 240), the 4th detection terminal 540 and input buffer A4 of output buffer A3, resistance R r, the 3rd detection terminal 510, all print cartridge IC of the second detection signal DPins that produces from the second detection signal generation portion 650, second test section 670 detects second and detects response signal DPres thus.
If third and fourth detection terminal 510,540 does not contact with two the first terminals 210,240, be false in the second then above-mentioned installation and measuring path.In this case, can not use second test section 670 to detect and detect response signal DPres based on second of the second detection signal DPins.So; Second test section 670 has or not and is detected according to detect response signal DPres based on second of the second detection signal DPins, can detect the contacting/noncontact of two second terminals 210,240 of third and fourth detection terminal 510,540 and all box IC accurately.
(2) short-circuit detecting
In this embodiment; Use above-mentioned first, second detection signal generation portion 640,650 and first, second test section 667,670 to come to have or not between the detection terminal short circuit, the short circuit between the terminal possibly cause above-mentioned storage device, control circuit etc. are applied and surpasses the such voltage of absolute maximum rated voltage.That is, contact detection and short-circuit detecting are performed simultaneously.For this short-circuit detecting, also summarize with reference to Fig. 6 and Fig. 7.In addition, in Fig. 6 and Fig. 7, for the ease of mapping, box 100 only illustrates one.
Action when Fig. 6 shows second detection terminal 590 and the 3rd detection terminal 510 electric short circuits.For the short circuit of second detection terminal 590 and the 3rd detection terminal 510, as a result of take place to get final product, comprise the short circuit of the terminal 240,290 of box side, second detection terminal 590 of apparatus main body side and the short circuit of the 4th detection terminal 540 etc.
In this case; First test section 667, the second detection signal DPins of the first detection signal Spins and the first short circuit paths Ir2 that flows through (resistance R r, the 3rd detection terminal 510, box (second terminal 210, wiring 206 and second terminal 240), the first short-circuit resistance RSN and second terminal 590) in the first above-mentioned installation and measuring path signal after synthetic of accepting to flow through; Thus; Detect the short circuit of second detection terminal 590 and the 3rd detection terminal 510, the first short circuit paths Ir2 comprises first short (short-circuit resistance RSN) between detection terminal 590 and the 4th detection terminal 540 (the 3rd detection terminal 510).
Action when Fig. 7 shows first detection terminal 550 and the 4th detection terminal 540 electric short circuits.For the short circuit of first detection terminal 550 and the 4th detection terminal 540, as a result of take place to get final product, comprise the short circuit of the terminal 210,250 of box side, first detection terminal 550 of apparatus main body side and the short circuit of the 3rd detection terminal 510 etc.
In this case; Second test section 670, the first detection signal SPins of the second detection signal DPins and the second short circuit paths Ir1 that flows through (resistance R c, first detection terminal 550, the first short-circuit resistance RSP, box (second terminal 210, wiring 206 and second terminal 240) and the 4th detection terminal 540) in the second above-mentioned installation and measuring path signal after synthetic of accepting to flow through; Thus; Detect the short circuit of first detection terminal 550 and the 3rd detection terminal 510, the second short circuit paths Ir1 comprises second short (short-circuit resistance RSP) between first detection terminal 550 and the 3rd detection terminal 510 (the 4th detection terminal 540).
According to this formation; Signal Spins, DPins that the installation and measuring of two systems is used are also used as the signal that short-circuit detecting is used, and when between terminal, short circuit having taken place, first test section is accepted the signal based on DPins; Second test section is accepted the signal based on Spins, can detect short circuit thus.Said each signal can detect with digital form.Signal Spins, DPins that the short-circuit detecting of two systems is used for example can be made as pulse signal.Thus, do not need high-precision analog circuit.
Contact detection and short-circuit detecting during usually with the power connection of printing equipment 1000 or the order carried out when changing of box before quantity of ink detects, carry out.Thus; When whether box 100 correctly is installed to the contact detection of retainer 1100, under the situation that short circuit is detected, preferably; Do not carry out quantity of ink and detect, and perhaps advise removing the such message of dirt of box 100 to user's output such as recommended replacement box 100.
(3) overvoltage detects
The summary of the superpotential detection that produces during next, to above-mentioned short circuit describes.The overvoltage test example is used to prevent the processing of following situation in this way: short circuit is not detected when carrying out installation and measuring; But quantity of ink detects to handle and is short-circuited when being performed, and control circuit 400,500 and storage device 203 are applied in the high voltage that sensor drive is used.To shown in Figure 7, high voltage generation portion 661 can be set in installation/short-circuit detecting portion 662 like Fig. 5.Overvoltage test section 620 can be set in installation/short-circuit detecting portion 665.
High voltage generation portion 661 for example can generate the high voltage (for example, 36～42V) of the high voltage level of the voltage of first, second detection signal Spins of having than 3.3V, DPins.High voltage generation portion 661 (comprising high voltage portion 663 and output buffer A5) applies high voltage via switch TS2 to sensor 208, and (for example, 42V), liquid measure test section 664 shown in Figure 5 thus detects the ink surplus of print cartridge IC1, IC2.
If be short-circuited via short-circuit resistance RSN (Fig. 6) and/or short-circuit resistance RSP (Fig. 7) when applying high voltage; Then via in this short-circuit resistance RSN (Fig. 6) and/or short-circuit resistance RSP (Fig. 7), the 3rd detection terminal 510 and/or the 4th detection terminal 540, the diode 641,642,645 shown in Figure 5 at least one; This high voltage is detected by overvoltage test section 620 by bleeder circuit Ra, Rb dividing potential drop thus.
If in sensor terminal 250,290; 550; Thereby 590 and the terminal 210,240,510,540 beyond the terminal 210,240,510, the sensor terminal that is short-circuited between 540 beyond the sensor terminal be applied in the voltage level higher than prescribed voltage level, then detect the generation of this overvoltage condition through overvoltage test section 620.In this case, for example, this testing result is sent to main control circuit (control part) 400, and main control circuit (control part) 400 can promptly be carried out countermeasures such as reduction or blocking-up high voltage.That is, can be independent of the short-circuit detecting between the terminal, carry out preferred overvoltage countermeasure.
(4) detailed description of short-circuit detecting
Narrated: when short circuit shown in Figure 6 takes place; Not the first detection signal Spins in the first installation and measuring path of flowing through; But the second detection signal DPins (Ir2) of first short circuit paths that comprises short-circuit resistance RSN of flowing through is detected, and first test section 667 detects the short circuit between second detection terminal 590 and the 3rd detection terminal 510 thus.This means: so that the second detection signal DPins is by first test section, 667 detected modes when the short circuit with the resistance value that causes that unfavorable condition is such takes place, the current driving ability of the second detection signal DPins (Ir2) of first short circuit paths of flowing through is set.Whether the second detection signal DPins is detected the current driving ability that depends on first, second detection signal generation portion 640,650 self poor from the first installation and measuring path of first test section 667 and each impedance between first short circuit paths when equating substantially by first test section 667.That is, condition is that the impedance of impedance ratio first short circuit paths in the first installation and measuring path is big.
At this, in the impedance in the first installation and measuring path, the impedance (being made as Rz) of the impedance Rc of output buffer A1 and switch TS1, sensor 208 is overriding.Especially, if sensor 208 is capacity cells, then the impedance Rz of sensor 208 is infinitely great.Thus, the impedance in the first installation and measuring path is set up greater than the such condition of the impedance of first short circuit paths.Therefore, can use first test section 667 to detect to flow through the second detection signal DPins of the first short circuit paths Ir2 of the Fig. 6 that comprises short-circuit resistance RSN.
Likewise, when short circuit shown in Figure 7 takes place, can detected condition be big from the impedance of impedance ratio second short circuit paths in the second installation and measuring path of second test section 670.In this case, the impedance in the second installation and measuring path must be greater than impedance Rc and the short-circuit resistance RSP of overriding output buffer A1 and switch TS1 in the second short-circuit detecting path.
Therefore, in the printing equipment 1000 of Fig. 5, preferably have the electric current limiting resistance Rr of restriction from the magnitude of current of the second detection signal DPins (Ir2) of the 3rd detection terminal 510 outputs.Electric current limiting resistance Rr can be made as the resistance value that satisfies Rr＞Rc+RSP.
As stated; When the short circuit of Fig. 6 takes place; Utilize the big resistance R z of sensor 208, when the short circuit of Fig. 7 takes place, utilize electric current limiting resistance Rr; The impedance in first, second installation and measuring path and first, second short-circuit detecting path can be set, and the current driving ability of first, second detection signal Spins, DPins can be adjusted.Thus, when being short-circuited, can use second test section 670, first test section 667 to detect each first, second detection signal Spins, DPins as short-circuit signal.
In addition, should be carried out in control circuit 400,500 and storage device 203, not producing unfavorable condition in order between the sensor terminal 250,290 of the sensor terminal that is applied in high-tension apparatus main body side 550,590, box side and apparatus main body side terminal 510 or 540, to be short-circuited that overvoltage detects and the resistance value of the short circuit of short-circuit detecting describes.In the printing equipment 1000 of Fig. 5; If said high-tension maximum voltage is made as Vmax; When being applied high voltage, 660 pairs of sensors 208 of sensor processing portion (sensor drive driving circuit) are made as Vlim because short circuit is applied to the voltage of the 3rd detection terminal 510 or the 4th detection terminal 540; The electric current of the 3rd detection terminal 510 and the 4th detection terminal 540 of flowing through when voltage Vlim is applied in is made as Ilim, short-circuit resistance RSN or the short-circuit resistance RSN that then should be carried out overvoltage detection/short-circuit detecting preferably respectively than with high-tension maximum voltage Vmax divided by detect the resistance value that electric current I lim obtains (R '=Vmax/Ilim) little resistance.
That is, preferably, (still, Vmax >=Vlim) such relation is set up for RSN＜Vmax/Vlim, RSP＜Vmax/Vlim.This Vmax/Ilim is the condition that the device (control circuit or storage device) that is used for object of protection is no more than absolute maximum rated voltage, is under smaller or equal to the situation of Vmax/Ilim, to carry out the boundary condition that short-circuit detecting/overvoltage detects.
And, in printing equipment shown in Figure 5 1000, discharge in order before various detections, various detection printing materials to be held the electric charge of accumulating in the sensor 208 of body (print cartridge) IC1, IC2, can have arresting element M1, M4 (Fig. 6 or Fig. 7).
As stated, printing equipment 1000 is equipped with first, second detection signal of two systems, and under situation about being short-circuited between the terminal, with the interference of each signal of digital form detection, and to stipulate that current potential (for example, ground connection) has or not short circuit for benchmark detects.
At this, if when detecting short circuit, accumulate in the capacity cell as sensor 208 electric charge is arranged, then the electric current by this charge generation causes measure error.That is it is difficult, having or not short circuit with regulation current potential (for example, ground connection) for benchmark detects.So, can be arranged on the discharge path that discharges before the electric charge of detecting sensor (capacity cell) 208.Be provided with because Fig. 6 and arresting element (MOS transistor) M1, M4 shown in Figure 7 connect formed path, and discharge via the electric charge of this discharge path to sensor (capacity cell) 208.Thus, making the quantity of electric charge of accumulating of sensor 208 is zero, thereafter through detecting the precise decreasing that suppresses to detect.
And; In printing equipment shown in Figure 5 1000; With the box side terminal 210,240,250,290 shown in the prior figures 3 (A) accordingly; First detection terminal 550 of apparatus main body side is adjacent with the 3rd detection terminal 510, and second detection terminal 590 of apparatus main body side is adjacent with the 4th detection terminal 540.
Under first detection terminal 550 situation adjacent, for example,, the ink of electric conductivity etc. increases owing to making the two-terminal short circuit that superpotential possibility take place with the 3rd detection terminal 510.And, under second detection terminal 590 situation adjacent, for example, increase owing to the ink of electric conductivity etc. makes the two-terminal short circuit that superpotential possibility take place with the 4th detection terminal 540.Therefore, very important based on the countermeasure of short-circuit detecting.Above item under first detection terminal 550 situation adjacent with the 4th detection terminal 540, also be same under second detection terminal 590 situation adjacent with the 3rd detection terminal 510, need the overvoltage countermeasure.
Main control circuit (control part) 400 that comprises in the printing equipment 1000 of Fig. 5 controlled the execution of above-mentioned various detections before printing equipment 1000 is carried out the printing action.Then, when short circuit or overvoltage are detected, can reduce or block through control part (main control circuit) 400 from the voltage of high voltage generation portion 661 outputs.
Through the control method of such printing equipment, can improve the security of the high voltage drive in the printing equipment 1000.In addition, in Fig. 5, Reference numeral TS1～TS3 or switch SW 1, SW2, SW1 ', SW2 ' are the analog switches through main control circuit (control part) 400 control on/off.
Next, with reference to Fig. 8 one example of the waveform of installation and measuring and short-circuit detecting is described.Fig. 8 is the figure that is used to explain the voltage waveform of first to fourth detection terminal 510,540,550,590.
When not being short-circuited, as shown in Figure 8, by reflection substantially, this first detection signal Spins arrives second terminal 590 as the first response signal SPres from the voltage waveform of the first detection signal Spins of first detection terminal 550 output.And by reflection substantially, this second detection signal DPins arrives the 4th detection terminal 540 as the second response signal DPres from the voltage waveform of the second detection signal DPins of the 3rd detection terminal 510 output.
Under the situation of Fig. 6 of the short circuit that takes place to cause by short-circuit resistance RSN, with second detection terminal 590 that first test section 667 is connected in, owing to short circuit, the second response signal DPres of the second detection signal DPins appears.That is it is overriding, flowing through that the second detection signal DPins of the short-circuit resistance RSN (first short circuit paths) littler than the resistance R z of the sensor 208 of Fig. 6 compares with the first detection signal Spins of the bigger resistance R z that flows through.In addition, under the situation that short circuit shown in Figure 6 takes place, in second terminal 590 shown in Figure 8, based on first response signal SPres appearance damply under the effect of the bigger resistance R z of sensor 208 of the first detection signal Spins.Thus, in Fig. 8 that the situation that short circuit shown in Figure 6 takes place is shown, during shadow representation in, be not that voltage waveform but the voltage waveform mastery ground in second detection terminal 590 of the second response signal DPres of the first response signal SPres occurs.At this moment, first test section 667 can detect as high level H in the short circuit with Fig. 6 of the time point of moment t1 shown in Figure 8, t4, perhaps can detect as low level L in the short circuit with Fig. 6 of the time point of moment t2 shown in Figure 8, t3.
On the other hand, under the situation of Fig. 7 of the short circuit that takes place to cause, with the first response signal SPres of the appearance first detection signal Spins in the 4th detection terminal 540 that second test section 670 is connected by short-circuit resistance RSP.That is it is overriding, flowing through that the first detection signal Spins of the short-circuit resistance RSP littler than the resistance R r of Fig. 7 (second short circuit paths) compares with the second detection signal DPins of the bigger resistance R r that flows through.In addition, under the situation that short circuit shown in Figure 7 takes place, in the 4th detection terminal 540 shown in Figure 8, based on second response signal DPres appearance damply under the effect of bigger resistance R r of the second detection signal DPins.Thus, in Fig. 8 that the situation that short circuit shown in Figure 7 takes place is shown, during shadow representation in, be not that voltage waveform but the voltage waveform mastery ground in the 4th detection terminal 540 of the first response signal DPres of the second response signal SPres occurs.At this moment, second test section 670 can detect as high level H in the short circuit with Fig. 7 of the time point of moment t2 shown in Figure 8, t3, perhaps can detect as low level L in the short circuit with Fig. 7 of the time point of moment t1 shown in Figure 8, t4.
And, in this embodiment, as stated, can carry out contact detection and short-circuit detecting simultaneously.For example, first test section 667 can the moment shown in Figure 8 (t1, detection level t2) is (L; L) detect under the situation contactless, the moment shown in Figure 8 (t1, detection level t2) is (L; H) detect normal contact under the situation; (t1, detection level t2) are that (H detects the short circuit of Fig. 6 under situation L) in the moment shown in Figure 8.Likewise, second test section 670 can the moment shown in Figure 8 (t1, detection level t2) be combined as (L; L) detect under the situation contactless, the moment shown in Figure 8 (t1, detection level t2) be combined as (H; L) detect normal contact under the situation; (t1, (L detects the short circuit of Fig. 7 under situation H) for being combined as of detection level t2) in the moment shown in Figure 8.
More than, several embodiments is illustrated, but what those skilled in the art may appreciate that is not break away from the multiple modification of new item of the present invention and effect in fact.Therefore, such variation is all within the scope of the invention involved.For example, in specification or accompanying drawing, term replaceable different term in the position arbitrarily of specification or accompanying drawing of at least once putting down in writing together with the different term of broad sense or synonym more for their.
Claims (6)
1. a printing equipment is characterized in that, comprising:
Printing material holds body; Said printing material holds body and has two the first terminals, two second terminals, at the electric device that connects between said two the first terminals and connect the wiring between said two second terminals, said printing material holds body can be with respect to said printing equipment loading and unloading;
First and second detection terminals, said first and second detection terminals contact with said two the first terminals when said printing material holds body and is installed to said printing equipment;
Third and fourth detection terminal, said third and fourth detection terminal are when said printing material holds body and is installed to said printing equipment and said two second termination contact;
First test section; Said first test section is connected with said second detection terminal; And, detect contacting of said first and second detection terminals and said two the first terminals thus via first detection signal of the first installation and measuring path detection that comprises said electric device and said two the first terminals from the output of said first detection terminal; And
Second test section; Said second test section is connected with said the 4th detection terminal; And via second detection signal of the second installation and measuring path detection that comprises said wiring and said two second terminals from said the 3rd detection terminal output; Detect contacting of said third and fourth detection terminal and said two second terminals thus
Said first test section detects the short circuit of said second detection terminal and said the 3rd detection terminal based on said second detection signal,
Said second test section detects the short circuit of said first detection terminal and said the 4th detection terminal based on said first detection signal.
2. printing equipment as claimed in claim 1 is characterized in that,
To be made as first short circuit paths from the path that second detection signal of said the 3rd detection terminal output is passed to said first test section; To be made as second short circuit paths from the path that said first detection signal of said first detection terminal output is passed to said second test section
The impedance in the said first installation and measuring path is greater than the impedance of said first short circuit paths,
The impedance in the said second installation and measuring path is greater than the impedance of said second short circuit paths.
3. printing equipment as claimed in claim 2 is characterized in that, also has the electric current limiting resistance of restriction from the magnitude of current of said second detection signal of said the 3rd detection terminal output.
4. printing equipment as claimed in claim 3 is characterized in that,
Also has the overvoltage test section; When said overvoltage test section has applied the high voltage with voltage level higher than the voltage of said second detection signal at said printing equipment to said first detection terminal, detect one in said the 3rd detection terminal and said the 4th detection terminal and whether be applied in the above voltage level of regulation.
5. like each described printing equipment in the claim 1 to 4, it is characterized in that,
The said electric device that said printing material holds body is to use capacity cell to detect whether the surplus that said printing material holds the printing material in the body is the above sensor of ormal weight,
Said printing equipment also has arresting element, and said arresting element is discharged by the electric charge to said capacity cell before exporting at said first detection signal and said second detection signal.
6. like each described printing equipment in the claim 1 to 5, it is characterized in that,
Said first detection terminal is adjacent with said the 3rd detection terminal, and said second detection terminal is adjacent with said the 4th detection terminal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011-125991 | 2011-06-06 | ||
| JP2011125991A JP5810643B2 (en) | 2011-06-06 | 2011-06-06 | Printing device |
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| CN102815104A true CN102815104A (en) | 2012-12-12 |
| CN102815104B CN102815104B (en) | 2016-03-02 |
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| CN113400808A (en) * | 2019-11-06 | 2021-09-17 | 杭州旗捷科技有限公司 | Consumable chip, consumable container and consumable container installation detection method |
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| CN103802483B (en) | 2013-12-26 | 2016-08-31 | 珠海艾派克微电子有限公司 | A kind of print cartridge, ink box chip and chip method for detecting short circuit |
| JP6519369B2 (en) * | 2015-07-09 | 2019-05-29 | ブラザー工業株式会社 | Printing system and printing apparatus |
| US11535037B1 (en) * | 2021-12-28 | 2022-12-27 | Seiko Epson Corporation | Device, board, liquid accommodation container, and printing system |
| JP7176610B2 (en) * | 2021-12-28 | 2022-11-22 | セイコーエプソン株式会社 | device |
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| CN102815104B (en) | 2016-03-02 |
| JP5810643B2 (en) | 2015-11-11 |
| US20120306959A1 (en) | 2012-12-06 |
| JP2012250489A (en) | 2012-12-20 |
| US8616674B2 (en) | 2013-12-31 |
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